Transport of concrete by pumps, is done for a distance of

For preparing ordinary concrete, the quantity of water used, is

A ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. sieve No. 9, more than

For continuous transportation of concrete, the method used is

Shrinkage in concrete can be reduced by using

The term 'ware-house pack' means

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known

The heat of hydration of cement can be reduced by